The ISS Progress 47 cargo craft docked to the International Space Station’s Pirs docking compartment Sunday at 10:39 a.m. EDT. The Russian resupply craft replenishes the Expedition 30 crew with 2.8 tons of food, fuel and supplies. The cargo delivery includes 1,988 pounds of propellant, 110 pounds of oxygen and air, 926 pounds of water and 2,703 pounds of spare parts, resupply items and experiment hardware.

Aboard the station Monday, Expedition 30 Commander Dan Burbank and Flight Engineers Anton Shkaplerov and Anatoly Ivanishin continued to prepare for their return to Earth, packing items and conducting a review of undocking and descent procedures for the Soyuz TMA-22 spacecraft that brought them to the orbiting laboratory back in November. The trio is scheduled to undock in the Soyuz on Friday at 4:19 a.m. and land in Kazakhstan a little over three hours later ending Expedition 30.

Remaining aboard the station will be Flight Engineers Don Pettit, Andre Kuipers and Oleg Kononenko, who will become the Expedition 31 crew. They will be joined by Flight Engineers Gennady Padalka, Joe Acaba and Sergei Revin, who are currently at the Gagarin Cosmonaut Training Center in Star City, Russia, preparing for their launch on May 14.

Pettit and Kuipers focused on unpacking some of the 7.2 tons of cargo and supplies delivered to the station aboard the “Edoardo Amaldi” Automated Transfer Vehicle on March 28. They also worked on the transfer and consolidation of food containers from the Unity node to the Leonardo Permanent Multi-Purpose Module.

Kononenko participated in a Russian medical test called SPRUT-2, which investigates the distribution and behavior of human body fluids in zero gravity. He also had some time set aside to monitor and maintain the systems in the Russian segment of the station.

Shkaplerov and Ivanishin worked with the Bioemulsion experiment, which looks at the biomass of microorganisms and biologically active substances. Researchers hope to use the observations to produce microorganisms, biomasses and biologically active substances in highly efficient and ecologically safe ways.

SpaceX media relations just issued the following statement about the company’s upcoming demonstration flight to the International Space Station. SpaceX says it’s not going to make the April 30 target launch date, so the company is working with NASA to set a new target date, perhaps a week later.

FROM SPACEX:

Update on SpaceX COTS 2 Launch

After reviewing our recent progress, it was clear that we needed more time to finish hardware-in-the-loop testing and properly review and follow up on all data. While it is still possible that we could launch on May 3rd, it would be wise to add a few more days of margin in case things take longer than expected. As a result, our launch is likely to be pushed back by one week, pending coordination with NASA.